The 5KU AK Classic Upper Rail for the AK platform is a lightweight, easy to install rail attachment to offer a small section of rail for the mounting to optics, lights, or lasers.
Compatibility:
GHK AK Platform
LCT AK Platform
Includes:
x1 5KU B-22 AK Classic Upper Rail for LCT / GHK AK AEG / GBB Series - Black
There is no problem with product production and painting.
However, it is the same 5ku product, but there is a slight difference in color. It is slightly dark blue. If you assemble it with the same company's sport4 rail kit, you can feel the difference in color.